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421st Avenue over Creek

Marshall County, South Dakota

Map

Coordinates:
+45.73909, -97.79239
45°44'21" N, 97°47'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:421st Avenue over Creek
Structure number:000000046090137
Location:3.7S & 2W of Britton
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:23.0 ft. [7.0 m]
Total length:24.9 ft. [7.6 m]
Roadway width between curbs:25.3 ft. [7.7 m]
Deck width edge-to-edge:25.6 ft. [7.8 m]
Owner:County Highway Agency [02]
Year built:1971
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Concrete [1]
Main span design:Tee beam [04]
Deck type:Concrete Precast Panels [2]
Wearing surface:Gravel [8]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:35 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:87.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairFairFairFair3587.0
July 2015FairFairFairFair3580.3
September 2013FairSatisfactoryFairSatisfactory3577.8
September 2011FairSatisfactoryFairSatisfactory3577.8
August 2009FairSatisfactoryFairSatisfactory3577.8
July 2007FairSatisfactoryFairSatisfactory3577.8
August 2005FairSatisfactoryFairSatisfactory3577.8
July 2003FairSatisfactoryFairSatisfactory3577.8
September 2001FairSatisfactorySatisfactorySatisfactory3588.8
August 1999FairGoodVery GoodSatisfactory3588.8
October 1997GoodVery GoodVery GoodVery Good3588.8
August 1995GoodVery GoodVery GoodVery Good3588.5
July 1993GoodVery GoodVery GoodVery Good3588.5
August 1991GoodVery GoodVery GoodVery Good3588.5